My name is Forrest Charnock and I am new to this forum and to desktop publishing,

The reason I joined is that I am writing a book for the first time and have no clue how to go about it. I am using SoftMaker 2016 on Linux. Since I was a 14 my father had me and my brother out collecting building materials to use around the house , for out buildings ,and to sell. We did everything from dismantling bridges to use for pier and beam foundations ,removed all the wood floors from a middle school etc.
I discovered people selling antique flooring and beams at a profit. I started acquiring a few houses here and there and did well selling the floors. A friend of mine installed floors and one of his clients wanted enough antique wood to floor the entire historic Rice Hotel in Houston Texas. Then I decided to put my entire efforts into reclamation . It became more profitable and a lot more fun than cleaning carpet and selling vacuum cleaners, The book will be a how to for a person with average carpentry skills to quickly,safely, and profitably dismantle small buildings and remove the surface flooring from large ones.
Anyone I am terminal and want to leave something to say I was here and help support my church support missionaries in the Middle East, any pointers on how to organize the book and make it easy reading would be greatly appreciated.
Thank you in advance !